The term 'niche' of a species refers to:

The $Veldts$ of $Africa$ and the $Pampas$ of $South$ $America$ are examples of which biome?

Quercus species are the dominant component in

Eurythermal organisms are those which

Consider the following four conditions $(1-4)$ and select a correct pair of them as adaptations to the environment in desert lizards.
Conditions:
$1$. Burrowing in soil to escape high temperature.
$2$. Losing heat rapidly from the body during high temperature.
$3$. Bask in sun when temperature is low.
$4$. Insulating body due to thick fatty dermis.

Which one of the following correctly represents an organism and its ecological niche?